Improvement in churns



1. c. joHNsoNK improvement in Churns.

Patented .luly 9,1872.

W i'nesaes.

UNITED STATES PATENT OFFICE.

JOHN C. JOHNSON, OF UNIONTOWN, PENNSYLVANIA.

l"vir-ROVEMENT IN cHuRNsl Specification forming part of Letters Patent No. 128,730, dated July 9, 1872.

`in which two sets of suspended beaters are rotated in different directions; and consists of a churn in which the beaters are so constructed and arranged as to insure a rapid circulation of counter-currents of cream within the churn.

In the accompanying drawing, illustrating my invention, Figure l is a sectional elevation of a churn with my improvements, and Fig. 2 a sectional plan view.

To the cylindrical or tapering bodyAof the churn is fitted a lid, B, consisting of two sections, to the larger of which is secured a standx ard or frame, C. On a stud on this frame turns a toothed wheel, D, which gears with pinions a b, the latter at the npperend of ahollow shaft, c, and the former at the end of a shaft, f, which passes through the shaft c; both shafts turning in projections on the frame, and eX- tending through the lid int-o the vessel A. To the lower end of the tubular shaft is secured a cross-bar, J, at the opposite ends of which are sockets for receiving the ends of detachable vertical beaters or dashers, h h, which are perforated, as shown in the drawing; and to the lower end of the shaft f,which extends below the hollow shaft, is a shorter cross-bar, M, having sockets, to which are -tted the shanks of dashers m m, similar to the flashers 7L h. Each dasher has three sides or faces, and it will be seen, on reference to Fig. 2, that the dashers are so arranged that when traversing in the direction of their arrows one oi the sharp edges of each dasher will be foremost. Owing to this arrangement the cream contained within the vessel A will be thrown by the inclined faces of the dashers both outward and inward as the dashers traverse their circular paths, andas each pair of dashers traverses in a different direction a series of currents, in the directions indicated by the arrows, back and forth across the vessel, will be created, causing sucha thorough commingling and attrition of the particles as will insure the speedy rupture of the small sacks containing the butter.

When, toward the completion of the operation, it is desired to gather77 the butter, the shaft f maybe raised until the piniona is out of gear with the drivin g-wheel when the dashers m fm, may be rotated or vibrated alone.

Should it be desirable to remove a dasher itV cross-piece can readily be detached from the and another substituted.

I claim as my invention- The combination, in a churn, of the threesided dashers m m lr, h, traversing in contrary directions with their edges foremost, substantially as and for the purpose described.

In testimony whereof I have signed lnyname to this specification in the presence of two subscribing witnesses.

. VJOHN C. J QHNSON.

Witnesses:

DANI.. F. COOPER, MARSHALL N. LEWIS. 

